You get this error when opening your application in Microsoft Visual Studio.
The project type is not supported by this installation.
To resolve the issue, install these components:
Microsoft Visual Studio Standard/Professional/Enterprise/Team Suite Edition. For applications using .NET Framework 2.0, Microsoft Visual Studio 2005 is required. For applications using .NET Framework 3.5, Microsoft Visual Studio 2008 is required. For applications using .NET Framework 4.0, Microsoft Visual Studio 2010 is required.
Microsoft Visual Studio 2005 Service Pack 1 (for applications in .NET 2.0 Framework)
Microsoft Visual Studio 2008 Service Pack 1 (for applications in .NET 3.5 Framework)
Microsoft .NET Framework 3.5 Service Pack 1 (for applications in .NET 3.5 Framework)
Microsoft Visual Web Developer from the installer of Microsoft Visual Studio
If the Microsoft Visual Studio Shell exists on your machine without Microsoft Visual Studio Standard, Professional, Enterprise, or Team Suite Edition installed, it is not possible to open the application in Microsoft Visual Studio according to Microsoft.
Part IX: Troubleshooting Applications
Application Generation and Compilation Error Messages